Online PHP editor | output for 7ogrE

@ 2019-01-02T14:05:23Z

<?php

$word1 = 'abcdefghijkl';
$word2 = 'acgikluuo';
$expected = 6;

function countMatchingChars($word1, $word2) {
    $matching = 0;
    foreach(str_split($word1) as $char) {
        if(strpos($word2, $char) !== false) {
            $matching++;
        }
    }

    return $matching;
}

$matchingChars = countMatchingChars($word1, $word2);

assert($matchingChars === $expected);

Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

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